[Commentary] On June 18th, with the last long steel rail on the Xianyang Weihe Bridge in Shaanxi steadily placed on the sleepers, it marked the successful completion of the track-laying project of the Xiyin High-speed Railway Shaanxi Section, and an important step towards the opening of the operation target by the end of the year .

　The track laying project of the Xi'an High Speed ​​Rail Shaanxi Section started on November 28, 2019. The total length is 326.7 kilometers. It is laid using a combination of ballasted and ballastless tracks. The tunnel group uses ballastless tracks, and other sections use ballasted tracks. Among them, there are up to 14 transition sections of ballast and ballastless, and the track laying technology and track laying equipment alternate more frequently.

　[Same period] (Zhang Weizhou, person in charge of the West China High-speed Rail Track Project of China Railway First Bureau)

　We used the method of alternating construction with ballast and ballast, and we have the ballast line, which is now using the CPG500 that we see later. At present, we should be more advanced in our country. This unit can lay our 500-meter long rail and this sleeper at once, which is compared with the traditional method of replacing the shop, which is to reduce the assembly of the rail row and the replacement of the tool rail, which greatly improves the work efficiency. .

　【Explanation】Since February 26, 2020, the Xiyin High-speed Railway Shaanxi Section's track laying project has been fully resumed, and the Xicheng Railway Passenger Dedicated Line Shaanxi Co., Ltd. has adhered to both epidemic prevention and control and resumption of production. Locked in the target of the construction period, formulated the epidemic prevention and control plan and the resume work organization plan, and accelerated the construction progress of the project. It took 114 days to complete the laying task of the Shaanxi section, which laid the foundation for the smooth progress of the static acceptance of the next line.

　[Same period] (Wang Shaoping, commander of the West Bank Headquarters of Xicheng Passenger Specialized Shaanxi Company)

　After the Xiyin High Speed ​​Rail was paved today, it was a very iconic key node. This led to our construction and acceptance planning stage. After passing this paving, we will do some engineering later, one is the refurbishment of the line, static Acceptance, dynamic acceptance, joint commissioning and joint testing enter our final acceptance process, so this time is very critical. We have half a year left. According to the general requirements of the railway, we will complete the following work in accordance with the procedure to ensure that it will be opened on schedule at the end of the year.

　[Explanation] The West Silver High Speed ​​Rail is a key project implemented by the National Railway's "Thirteenth Five-Year Plan" and an important part of the "eight vertical and eight horizontal" high-speed rail network package (silver) sea channel in China's mid-to-long-term railway network plan. Before opening operation. By then, the running time of the train from Xi'an to Yinchuan will be shortened from the current 14 hours to about 3 hours, which is of great significance for boosting economic and social development and accelerating the pace of poverty alleviation in the western region.

　Reporter Mei Yilong reports from Xianyang, Shaanxi

Editor in charge: [Wang Kai]